When is the next Phillyhenge?

The next Phillyhenge alignment windows in Philadelphia are: 26 Feb 2027 – 9 Mar 2027; 3 Apr 2027 – 15 Apr 2027; 28 Aug 2027 – 9 Sept 2027. Exact visibility depends on weather and the local skyline.

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City henge · United States

Documented phenomenon

Phillyhenge: Philadelphia

Sunrise · Thursday, 4 March 2027

06:38 AM EST · Look toward E (99°)

Philadelphia: sunrise bearing across the year vs Market Street

The dashed line is the street. Where the sun's curve touches it are the henge days. Drag across the year to move the sun.

Phillyhenge is the moment the rising or setting sun lines up with Market Street in Philadelphia.

The date above is the next time it happens, computed from the street's geometry. The windows further down list the full range of days the alignment holds.

Sunset alignment windows

3 Apr 2027 – 15 Apr 2027Peak: 9 Apr 2027 · 07:25 PM EDT
28 Aug 2027 – 9 Sept 2027Peak: 3 Sept 2027 · 07:22 PM EDT

Sunrise alignment windows

26 Feb 2027 – 9 Mar 2027Peak: 4 Mar 2027 · 06:38 AM EST
5 Oct 2027 – 16 Oct 2027Peak: 11 Oct 2027 · 07:14 AM EDT

Street corridors

Also seen along: Chestnut Street, Walnut Street, South Street

Streethenge calculates geometric solar and lunar alignments. Visibility on site depends on weather, buildings, trees, terrain, safety, and access.